You check your phone for the time and notice a red 1 above Messages. You weren’t planning to read anything. Now you want to know what’s there, or you just want the number gone.

If that sounds familiar, an unread badge is already doing a small job in your day: keeping something visible until you deal with it. For a task reminder, that can be useful. The permission form you forgot about at lunch gets another chance to reach you after practice.

But there are two things you can finish here. You can finish reading the message, and you can finish the task inside it. Clearing the first does not take care of the second.

A tiny number changes where people click

In a 2022 experiment by Nicola Bartoli and Simone Benedetto, participants saw a smartphone home screen with fifteen app icons. One icon had a notification badge. The researchers changed which app carried it and asked where participants would click first. Badged apps received substantially more first clicks than their unbadged counterparts.

This was a test on a static Android screen, not people using their own iPhones. It measured a first click, not discomfort, message reading, or completed homework. It also did not compare a red badge with the same badge in another color. The evidence supports the pull of a badge; it does not establish that red alone makes us act.

Why leaving it there can feel unfinished

A number on Messages leaves a question open: what haven’t I seen? Checking answers that question. If you like a clear home screen, it also removes a visible loose end. That is a plausible explanation for the urge to clear it, rather than a diagnosis or a rule about everyone’s brain.

You might happily ignore a huge email count and still dislike a single unread text. In a conversation, the unknown message could be a friend changing plans or someone waiting for an answer. The badge does not tell you which, so opening the conversation is a quick way to find out.

For a person who already responds to that cue, a reminder in Messages has a practical advantage over a task stored in an app they rarely visit. The task can return to a place they check anyway. This is our reasoning for using iMessage, not a measured TextTodo completion benefit.

The number is unread messages, not unfinished work

Apple describes an app badge as an indicator of unread notifications. It is not a count of your unfinished TextTodo tasks. Notification settings also affect whether you see a badge at all.

Suppose you read “submit the housing form” while walking to class. The unread indicator may clear, but the form is still sitting in another browser tab. If the entire reminder system depends on leaving a message unread, reading it has just removed the cue before you could act.

Give that moment a useful follow-up. If you have the form open and a minute free, submit it. If you need your laptop later, ask to snooze the reminder until then. In TextTodo, reading a message does not mark its task complete. You tell it when the work is done.

A useful nudge should not become a source of pressure

There is a cost to pulling attention toward a phone. In a 2015 experiment by Cary Stothart and colleagues, receiving phone notifications disrupted performance on an attention task even when participants did not interact with their phones. That study tested incoming calls and texts, not home-screen badges specifically, but it is a reason to be careful about interruption.

A reminder to bring your calculator before leaving home has a clear purpose. Repeatedly messaging you during an exam does not become helpful because the badge is hard to ignore. Choose reminder times when you can do something with the information. If badges make your phone stressful, turning them off is a reasonable choice; you do not owe a task app your attention all day.

Make opening the message worth it

The useful part of a TextTodo reminder is what happens after you open it: the task is named, the timing is yours, and you can reply in the same conversation. You should not have to reconstruct what “don’t forget” was supposed to mean.

The red number can bring a forgotten task back into view. Before you close the conversation, decide where that task goes next: done now, or a reminder at a time when you can actually do it.

Sources

  1. Bartoli and Benedetto, “Driven by notifications,” PLOS ONE, 2022.
  2. Apple Human Interface Guidelines: Notifications.
  3. Stothart, Mitchum, and Yehnert, “The attentional cost of receiving a cell phone notification,” 2015.